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dong zhi 2150 xing cai dian zong xian shu ju diao zheng
Author(s): 
Pages: 41
Year: Issue:  3
Journal: Family Electronics

Keyword:  维修状态电可擦除只读存储器数据调整总线系统遥控器数字键测试信号显像管电视机视频;
Abstract: <正> I~2C总线的组成该机I~2C总线系统,核心是一个主控CPU(M37222M6—C82SP),共有两组I~2C总线,分别由其第(11)脚(SCL0)与第(12)脚(SDA0)和第(37)脚(SCL1)与第(38)脚(SDA1)输出。第(11)脚与第(12)脚所接的是EEPROM(电可擦除只读存储器NM24C04EN);第(37)脚与第(38)脚所接的是视频/色度/扫描/中频集成电路M52707SP,相关电路如图1所示。维修状态的进入与退出正常开机后,按遥控器上的静音键一次,再按
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